Need a little help. Recently upgraded my computer to an I7-930 and Radeon HD 5870. Case temperatures were going higher then I liked 70+. So I added two 120 mm side fans (http://www.newegg.com/Product/Product.aspx?Item=N82E16835185060) they were what I had sitting around the room at the time. Now my computer has this nice high pitched whine due to those two new fans (but case temps under 50 at full load)... UGH. I am using the Haf 922 case. Can anyone recommend some case fans that will help keep my temps below 50 but without the high pitch whine?